You know the drill. You’re enjoying a lovely evening outside. Then you hear that high-pitched whine and feel the sting of a mosquito bite.

Something in the insect’s spit causes the small itchy welt. It’ll get better within a few hours for most people. But if you’re highly sensitive, symptoms can last for several days. That little spot can turn into an itchy sore the size of a quarter.

Don’t Scratch

It’s tough advice, but leave the bite alone. When you scratch, it creates openings in your skin that allow bacteria in and cause infection.